#include <bits/stdc++.h>

using namespace std;
#define int long long
const int inf = 0x3f3f3f3f3f3f3f3f;

void solve()
{
    int x, p;
    cin >> x >> p;
    if (p % x == 0)
    {
        int index = p / x;
        cout << 2 * index - 1 << endl;
    }
    else
    {
        int gap = p / x;
        p -= gap;
        cout << 2 * p << endl;
    }
}

signed main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    int _ = 1;
    cin >> _;
    while (_--)
    {
        solve();
    }
    return 0;
}